# coding=utf-8
class Settings():
    """ 存储《外星人入侵》的所有设置的类 """

    def __init__(self):
        """ 初始化游戏的设置 """
        #  屏幕设置
        self.screen_width = 800
        self.screen_height = 600
        self.bg_color = (230, 230, 230)
        # 飞船速度
        self.ship_speed = 1.5
        # 子弹设置
        self.bullet_speed = 3
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = 60, 60, 60

        # 外星人设置
        self.alien_speed = 1
        self.fleet_drop_speed = 10
        # 1表示向右，-1表示向左
        self.fleet_direction = 1
